Using the NdFeB Magnet Spheres (Neocube) to create shapes could let both hemispheres of your brain get enough exercise. It will not only exert your creativity and spatial abilities, but also math skills and even your logic. So both hemispheres of your brain will become active at the same time then it will encourages you to be creative and constructive, Therefore it always used as an educational tool,why don't use it to create two-dimensional shapes three-dimensional shapesby this amazing NeoCube ?

For the magnet ball, we are proud of obtain the CE Certificate. We can produce it according to customers' requests. Size: From D2mm-D50mm Tolerance: +/-0.02mm, +0.03/-0.01vmmGrade: N35, N38, N40, N42, N45 and so on. Coating: nickel, black nickel, silver, gold, blue, and red.